Issue launching NEO GEO games (cross hatch test)

[felleg]

Info about my mbc setup:

Build timestamp: 2022-09-10/16:27:39+00:00
Build commit: 4dcd07e9ba4f18edcf916642d23a06bfe66a702d

When I try launching a NEO GEO rom using a command similar to this one:

mbc load_rom NEOGEO /media/fat/games/NEOGEO/1\ World\ A-Z/Blazing\ Star\ \(blazstar\).neo

I get a cross hatch test:

This neo geo game works when I try to load it directly, or via a mgl, which contains the following:

<mistergamedescription>
    <rbf>_Console/NeoGeo</rbf>
    <file delay="1" type="f" index="1" path="../../../../media/fat/games/NeoGeo/1 World A-Z/Blazing Star (blazstar).neo"/>
</mistergamedescription>

Interesting note, when I try to launch a Neo Geo game from mbc while another Neo Geo game is already playing, I get garbled graphics of the already running game. It seems the BIOS is loaded incorrectly. For example, in this image, we see what happens after trying to load Metal Slug 1 (via mbc) while Blazing Star is running (from a manual launch via UI):

(We see garbled graphics from Blazing Star)

I have attempted to use MBC_CUSTOM_MODE, but I get the same result:

MBC_CUSTOM_MODE=f1 mbc load_rom NEOGEO /media/fat/games/NEOGEO/1\ World\ A-Z/Metal\ Slug\ -\ Super\ Vehicle-001\ \(mslug\).neo

[pocomane]

Sorry, I missed this issue when it had been opened. Effectively there seems to be a bug when running a rom in the default path but with a different capitalization. I mean, on my machine:

mbc load_rom NEOGEO /media/fat/games/NEOGEO/Blazing\ Star\ \(blazstar\).neo

give issues similar to the reported one, while

mbc load_rom NEOGEO /media/fat/games/NeoGeo/Blazing\ Star\ \(blazstar\).neo

correctly works [1]. Can you confirm that the latter works also for you? Just to be sure that there is nothing else wrong; I will try to fix this for any capitalization in the next days in any case.

Thanks for the report!

[1] note "NeoGeo" in the path instead of "NEOGEO"; If you use "mbc mgl_gen" command you can see that the generated path is wrong in the first case.

[felleg]

Yup, I confirm that this works for me (even though the NeoGeo/ folder doesn't exist on my SD card):

mbc load_rom NEOGEO /media/fat/games/NeoGeo/1\ World\ A-Z/Blazing\ Star\ \(blazstar\).neo

Strange, I never changed the capitalization for my NEOGEO folder. It has always been capitalized as far as I can tell.

Looking forward to the incoming fix, thanks for your help! :)

[felleg]

The new fix works for me! Cheers, closing this issue.